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Hey guys, i have come across an s52 motor and transmission that i want to use in my e34, i had my m50nv b20 setup with the tcd turbo and manifold, 42 lbs injectors, 255lph fuel pump, adj fuel pressure reg. Stock ecu, with moates emulator, bigger maf, etc... but i want to swap to something with more displacement and power.

So far i know i want to swap to obd1, which means m50 manifold and crank sensors, i will also be doing m50 fuel rail and everything else needed...

The problem i cant rap my head around is the vanos. My current ecu and harness is for non vanos. Which i wouldnt believe would work with this engine, unless i deleted vanos. Which im not sure is an option. (Searched with no hard evidence on how to) or do i swap to an m50 nv head an swap the cams and lifters and trays, into that head. Or do i swap to a 413 red label (i believe this is the one i need) ecu and harness to keep the vanos going, and just stick with what i have?

Either the outcomes would be...

S52, m50 obd1 manifold and all the trimmings, with 413 read label vanos ecu and harness

S52, with locked/removed vanos cams, on obd1 m50 manifold with current m50 nv ecu and harness

That seemed to be the easiest thing. I will most likely start with that, but i want to one day remove the vanos as ive herd of people having issues with it failing/making noise and also makes things a bit harder for tuning, but barrie could possibly shine some light on that part of it!